Mechanism Of Enhancement Ozonation By Ultrasound For Degradation Of Polyacrylamide In Asp Produced Water

The produced water from ASP (Alkali, Surfactant and Polymer) flooding oil has higher viscosity because of the presence of polymer residues, which made the separation of oil and water even harder. The degradation of polymer by using ultrasonic enhanced O-3 oxidation was also performed in (40+28+20) kHz three orthogonal field with the intensity of 1.6w/m(2) and the addition of 7.5mg/L O-3 for 15min. The change ratio of dynamic viscosity could attain 86.1%. By calculating utilization rate of O-3 and detecting the intermediate products of H2O2, the ultrasonic enhanced O-3 oxidation introduces the synergistic effect, increases the transfer efficiency and promote the generation of OH, The polymer degradation efficiency increases three times and the reaction time shorts about 3/4.